diff: restrict pathspec limitations to diff b/f case only

builtin_diff_b_f() needs a path, not pathspec. Other modes in diff can deal with pathspec just fine. But because of the current GUARD_PATHSPEC() location, other modes also reject :(glob) and :(icase). Move GUARD_PATHSPEC(), and the "path" assignment statement, which is the reason of this GUARD_PATHSPEC(), inside builtin_diff_b_f(). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Nguyễn Thái Ngọc Duy committed Nov 20, 2013 at 08:26 UTC 887c6c18ba84da8d722b1528fe8cdde65d9f9860
2 files changed +13 -10
builtin/diff.c
+7 -10
@@ -64,15 +64,18 @@ static void stuff_change(struct diff_options *opt,
64
65 static int builtin_diff_b_f(struct rev_info *revs,
66 int argc, const char **argv,
67 - struct blobinfo *blob,
68 - const char *path)
67 + struct blobinfo *blob)
68 {
69 /* Blob vs file in the working tree*/
70 struct stat st;
71 + const char *path;
72
73 if (argc > 1)
74 usage(builtin_diff_usage);
75
76 + GUARD_PATHSPEC(&revs->prune_data, PATHSPEC_FROMTOP | PATHSPEC_LITERAL);
77 + path = revs->prune_data.items[0].match;
78 +
79 if (lstat(path, &st))
80 die_errno(_("failed to stat '%s'"), path);
81 if (!(S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)))
@@ -255,7 +258,6 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
258 struct rev_info rev;
259 struct object_array ent = OBJECT_ARRAY_INIT;
260 int blobs = 0, paths = 0;
258 - const char *path = NULL;
261 struct blobinfo blob[2];
262 int nongit;
263 int result = 0;
@@ -366,13 +368,8 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
368 die(_("unhandled object '%s' given."), name);
369 }
370 }
369 - if (rev.prune_data.nr) {
370 - /* builtin_diff_b_f() */
371 - GUARD_PATHSPEC(&rev.prune_data, PATHSPEC_FROMTOP | PATHSPEC_LITERAL);
372 - if (!path)
373 - path = rev.prune_data.items[0].match;
371 + if (rev.prune_data.nr)
372 paths += rev.prune_data.nr;
375 - }
373
374 /*
375 * Now, do the arguments look reasonable?
@@ -385,7 +382,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
382 case 1:
383 if (paths != 1)
384 usage(builtin_diff_usage);
388 - result = builtin_diff_b_f(&rev, argc, argv, blob, path);
385 + result = builtin_diff_b_f(&rev, argc, argv, blob);
386 break;
387 case 2:
388 if (paths)
t/t6131-pathspec-icase.sh
+6
@@ -100,4 +100,10 @@ test_expect_success 'match_pathspec_depth matches :(icase)bar with empty prefix'
100 test_cmp expect actual
101 '
102
103 +test_expect_success '"git diff" can take magic :(icase) pathspec' '
104 + echo FOO/BAR >expect &&
105 + git diff --name-only HEAD^ HEAD -- ":(icase)foo/bar" >actual &&
106 + test_cmp expect actual
107 +'
108 +
109 test_done